US PATENT SUBCLASS 568 / 682
.~.~.~.~.~ Purification or recovery

Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
579  DF  .~.~ Ethers {11}
671  DF  .~.~.~ Acyclic {7}
681  DF  .~.~.~.~ Halogen containing {3}
682.~.~.~.~.~ Purification or recovery

DEFINITION

Classification: 568/682

Purification or recovery:

(under subclass 681) Processes which include separating the compound from impurities or from the reaction mixture.